When describing a state of turmoil or disruption, the phrase "churned-up" can be easily replaced with a number of synonyms. For example, "agitated" or "unsettled" convey the idea of a disturbance that is causing unrest. Additionally, "turbulent" or "chaotic" can be used to describe a situation that is marked by disorder and confusion. Other similar terms include "tumultuous," "roiled," and "fermenting." Each of these words can be useful in different contexts depending on the specific connotations that the writer or speaker is trying to convey. By choosing the right synonym, one can create a vivid and engaging description of a state of upheaval or disruption.